Once you've said "in conclusion" when giving an oral presentation, you should

A. Quickly review each presentation slide to make sure your audience saw each one
B. Stop talking within about a minute
C. Always pass out some kind of presentation print-out so your audience will not forget your material
D. Pause at least 10 seconds to create a dramatic effect
E. All of the above

if im not mistaken its a. collective emotional arousal

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.

answer; adjusting and adapting to a culture other than one's own;

answer; because they must appeal to a broad cross-section of the population;